correction codeschool-projects#2

erased class of nav

Author: sbgivan

src/index.html

@@ -13,9 +13,8 @@
   <header>
     <h1>Sergio Cruz</h1>
     <h2>Application Developer</h2>
-  
   <nav>
-    <ul class="nav">
+    <ul>
       <li><a href="index.html" class="active">Home</a></li>
       <li><a href="about.html">About</a></li>
     </ul>